Extracting prog: 1m47.397552667s
Minimizing prog: 3m50.053145406s
Simplifying prog options: 0s
Extracting C: 47.722959313s
Simplifying C: 10m16.627539249s


extracting reproducer from 1 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
detailed listing:
executing program 0:
r0 = openat$mixer(0xffffffffffffff9c, &(0x7f00000018c0), 0x0, 0x0)
ioctl$mixer_OSS_GETVERSION(r0, 0x40086602, 0x0)

program crashed: Internal error in do_vfs_ioctl
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=38.449055886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer
detailed listing:
executing program 0:
openat$mixer(0xffffffffffffff9c, &(0x7f00000018c0), 0x0, 0x0)

program did not crash
testing program (duration=38.449055886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$mixer_OSS_GETVERSION
detailed listing:
executing program 0:
ioctl$mixer_OSS_GETVERSION(0xffffffffffffffff, 0x40086602, 0x0)

program did not crash
testing program (duration=38.449055886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
detailed listing:
executing program 0:
r0 = openat$mixer(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$mixer_OSS_GETVERSION(r0, 0x40086602, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=38.449055886s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
program crashed: Internal error in do_vfs_ioctl
simplifying C reproducer
testing compiled C program (duration=38.449055886s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
program crashed: Internal error in do_vfs_ioctl
testing compiled C program (duration=38.449055886s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
program crashed: Internal error in do_vfs_ioctl
testing compiled C program (duration=38.449055886s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
program crashed: Internal error in do_vfs_ioctl
testing compiled C program (duration=38.449055886s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
program crashed: Internal error in do_vfs_ioctl
testing compiled C program (duration=38.449055886s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
program crashed: Internal error in do_vfs_ioctl
testing compiled C program (duration=38.449055886s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
program crashed: Internal error in do_vfs_ioctl
testing compiled C program (duration=38.449055886s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
program crashed: Internal error in do_vfs_ioctl
testing program (duration=38.449055886s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
detailed listing:
executing program 0:
r0 = openat$mixer(0xffffffffffffff9c, &(0x7f00000018c0), 0x0, 0x0)
ioctl$mixer_OSS_GETVERSION(r0, 0x40086602, 0x0)

program crashed: Internal error in do_vfs_ioctl
validation run: crashed=true
testing program (duration=38.449055886s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
detailed listing:
executing program 0:
r0 = openat$mixer(0xffffffffffffff9c, &(0x7f00000018c0), 0x0, 0x0)
ioctl$mixer_OSS_GETVERSION(r0, 0x40086602, 0x0)

program crashed: Internal error in do_vfs_ioctl
validation run: crashed=true
testing program (duration=38.449055886s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$mixer-ioctl$mixer_OSS_GETVERSION
detailed listing:
executing program 0:
r0 = openat$mixer(0xffffffffffffff9c, &(0x7f00000018c0), 0x0, 0x0)
ioctl$mixer_OSS_GETVERSION(r0, 0x40086602, 0x0)

program crashed: Internal error in do_vfs_ioctl
validation run: crashed=true
reproducing took 21m21.179776596s
repro crashed as (corrupted=false):
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4213 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : ioctl_setflags fs/ioctl.c:728 [inline]
pc : do_vfs_ioctl+0xe80/0x2370 fs/ioctl.c:843
lr : ioctl_setflags fs/ioctl.c:727 [inline]
lr : do_vfs_ioctl+0xe58/0x2370 fs/ioctl.c:843
sp : ffff80001fb87a00
x29: ffff80001fb87cd0 x28: dfff800000000000 x27: ffff700003f70f48
x26: 1fffe00019af4a38 x25: ffff80001fb87a40 x24: 0000000000000000
x23: ffff0000c04b3318 x22: 00000000fffffff2 x21: ffff8000141efd40
x20: ffff0000c8ea4a00 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008922504 x15: 00000000c020660b
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000ffffffffffff
x8 : 0000000000000000 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 ioctl_setflags fs/ioctl.c:727 [inline]
 do_vfs_ioctl+0xe80/0x2370 fs/ioctl.c:843
 __do_sys_ioctl fs/ioctl.c:872 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: ea29011f 9a9f026a d503229f b8400958 (2a1603e1) 
---[ end trace 3df0722391cdc7ba ]---
----------------
Code disassembly (best guess):
   0:	ea29011f 	bics	xzr, x8, x9
   4:	9a9f026a 	csel	x10, x19, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	b8400958 	ldtr	w24, [x10]
* 10:	2a1603e1 	mov	w1, w22 <-- trapping instruction

final repro crashed as (corrupted=false):
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4213 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : ioctl_setflags fs/ioctl.c:728 [inline]
pc : do_vfs_ioctl+0xe80/0x2370 fs/ioctl.c:843
lr : ioctl_setflags fs/ioctl.c:727 [inline]
lr : do_vfs_ioctl+0xe58/0x2370 fs/ioctl.c:843
sp : ffff80001fb87a00
x29: ffff80001fb87cd0 x28: dfff800000000000 x27: ffff700003f70f48
x26: 1fffe00019af4a38 x25: ffff80001fb87a40 x24: 0000000000000000
x23: ffff0000c04b3318 x22: 00000000fffffff2 x21: ffff8000141efd40
x20: ffff0000c8ea4a00 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008922504 x15: 00000000c020660b
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000ffffffffffff
x8 : 0000000000000000 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 ioctl_setflags fs/ioctl.c:727 [inline]
 do_vfs_ioctl+0xe80/0x2370 fs/ioctl.c:843
 __do_sys_ioctl fs/ioctl.c:872 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: ea29011f 9a9f026a d503229f b8400958 (2a1603e1) 
---[ end trace 3df0722391cdc7ba ]---
----------------
Code disassembly (best guess):
   0:	ea29011f 	bics	xzr, x8, x9
   4:	9a9f026a 	csel	x10, x19, xzr, eq	// eq = none
   8:	d503229f 	csdb
   c:	b8400958 	ldtr	w24, [x10]
* 10:	2a1603e1 	mov	w1, w22 <-- trapping instruction